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Can J Neurol Sci. 1999 Nov;26(4):321-4.

Temporal dermoid cyst with a partial dermal sinus tract.

Author information

1
Division of Neurosurgery, Montreal General Hospital, McGill University, Quebec, Canada.

Abstract

BACKGROUND:

Cranial dermal sinuses are rare and occur most frequently in the posterior fossa and along the midline. Likewise, supratentorial dermoid cysts are very uncommon.

METHOD:

We report a unique case of an adult female patient with both a supratentorial dermoid cyst and an incomplete dermal sinus tract.

RESULTS:

The patient is a 31-year-old female, who presented with a new onset complex partial seizure. Neuroimaging and surgery revealed a right superior temporal dermoid cyst with an associated dermal sinus tract. Furthermore, the dermal sinus tract was incomplete and had no cutaneous manifestations.

CONCLUSION:

We present a rare patient with an off midline supratentorial dermoid cyst associated with a uniquely incomplete cranial dermal sinus tract. The dermal sinus tract involved the bone, dura and intradural compartment, without involving the overlying skin. This represents a novel variant in the spectrum of cranial dermal sinus abnormalities.

PMID:
10563221
[Indexed for MEDLINE]
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